The -it flag in the docker run command is a combination of two options:
-i(or--interactive): This option keeps STDIN open even if not attached, allowing you to interact with the container.-t(or--tty): This option allocates a pseudo-TTY, which provides a terminal interface for the container.
Together, -it allows you to run a container interactively, enabling you to execute commands within the container as if you were using a terminal.
